Paper-reel



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PAPER REEL. APPLIGATION HLBD JULY 25.1902.

f LHOBERG, SR. a; F. H.' HOBERG.

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f5 MGZ UNITED STATES Patented February 23, 1904.

PATENT OFFICE.

PAPER-REEL.

SPECIFICATION forming part of Letters Patent No. 752,971, dated February 23, 1904.

Application iiled July 25, 1902. Serial No. 116,961. (No model.) I

useful Improvements in Paper-Reels, of which l the following is a specication.

Our invention relates to improvements in that class of paper-reels which are automatically contracted in diameter with each revolution upon its axis a distance corresponding with the thickness of the paper wound thereon, whereby the diameter of the roll of paper tion.

upon the reel will remain constant, regardless of the number of folds or thicknesses of paper by when printed upon` all the printed matter' will occupy the same relative position upon such sheets.

rlhe construction cf our invention is explained by reference to the accompanying drawings,` in which;y

Figure 1 represents a side view, part in sec- Fig. 2 is an end view. Fig. 3 is a detail drawn'on line w of Fig. l; Fig. 4 is a detail drawn on line y y of Fig. l, and Fig. 5 is a detail of the device for attaching the paper-supporting bars to the radial arms.

Like parts are identified by the same reference characters throughout the several views.

The reel proper comprises the shaft A, hubs B and C, radial arms D and E, and adjustable paper-supporting bars F. The shaft A is supported at its respective ends from a suitable base by the standards G and H. The radial arms D are rigidly connected with the shaft A by the hub B. The radial arms E are rigidly connected to the hub C, while the hub O is slidably supported upon the sleeve I and turns both with and independently of said sleeve, the sleeve I in turn being supported upon the shaft A.

The several paper-supporting bars F are adj ustably secured at their respective ends to the radial arms D and E through the slidable collars J, rods K, and hooks K. The slidable collars J are secured to the arms D .and E by and between the nuts L L. The hooks K are formed upon one edge of the adjustable bars F, while the opposite edges M of said bars are free to move toward and from the central shaft A, as hereinafter explained, while the paper is being wound thereon. The outer edges M of said bars are supported from the periphery of the conical-shaped drum N by the arm O and autifriction-roller P. The drum N is centrally supported from the shaft A on the screw-threaded bearing Q, and it is adapted to be moved longitudinally upon said shaft as the same is revolved. Thus it is obvious that when the outer edges M of the bars F are supported from the larger end of the drum, as indicated in Figs. l and 2, they describe a larger circle than when supported at the smaller end ofthe drum.

To provide for maintaining the roll of paper at a constant uniform diameter at its periphery as the sheet of paper is being Wound thereon, it becomes necessary to contract the reel slightly with each revolution a distance corresponding with the thickness of each additional layer or sheet.l This end is accomplished by supporting' the vouter edges M of the paper-supporting bars from the larger end of the drum N when beginning to wind the sheet of paper upon the reel and to slowly move said drum from left to right beneath the roller P as said reel is revolved, whereby the outer edges M of the paper-supporting bars vare permitted to turn inwardly toward the annular ratchet-Wheel R for engagement with the pawl S, which pawl S is pivotally supported from the standard Hby the bolt T. The pawl S is normally held out of contact with the ratchet by the periphery of the annular collars U and B. The collars U and B form a cam-bearing, each collar having a por- IOO tion of its periphery cut away, so that the pawl S upon dropping into this cut-away portion will engage the ratchet R. The pawl is raised by sliding up the incline A upon the collar B and remains in the raised position until it drops into the cut-away portion of the collars. The length of this cut-away portion is varied by adjusting the collar B in relation to the collar U. Thus as the cut-away portion is broughtbeneath the pawl S the same is thrown down byI the action of the spring W in contact with the teeth of the ratchet R, whereby said conical drum N is arrested in its forward movement until said pawl is thrown up by the incline A of the collar B. The space between the bearing V and the angular bearing A determines the relative movements of the drum N to that of the reel. Thus when desirous to increase the rapidity of themovement of the drum laterally upon the shaft the distance between the angular bearing V and A is increased, and when desirous to diminish the rapidity of the movement of the drum laterally upon the shaft the distance between said bearings V and A is diminished. The space between said bearings V and A is increased or diminished by changing the relative positions of the collars U and B to each other upon the shaft A. The collar Uis rigidly secured to the shaft A, while the collar B is adjustably secured to said shaft by the clamping-bolt C. The clamping-bolt C has screwthreaded bearings in the collar U, while its opposite end operates in the circular slot D, formed in the collar B. Thus by loosening the clamping-bolt C the relative positions of said collars to each other may be changed, when by turning down said clamping-bolt they may be locked together at any desired point of adjustment. To provide for` auto- 'matically severing the sheets of paper as they are successively wound upon the reel, we support a curved blade E at its respective ends from two of the radial arms D and E in such a manner that its cutting edge protrudes a slight distance through the apertures F, formed at or near the longitudinal center of paper-supporting bars M, whereby as one sheet of paper after another is drawn over the edge of said blade the same is severed. The cutting edge of the blade E is broken away at short intervals, so that a sufficient portion of the sheet of paper will remain intact to cause the same to be drawn upon the reel, while the cuts in the paper are of such length as to facilitate separation of the roll when desirousv to remove the same from the reel. Motion is communicated to the reel from a source of power through the sprocket-wheel G. It will be understood that when said drum has by the automatic action of the machine reached the limit of its lateral movement on the central shaft it is readjusted to its former position by the operator. This may be done by holding the drum and reversing the movement of the central shaft or by turning said drum back on the screw-threaded Shaft. For convenience in holding' said drum or turning the same back on the shaft we have provided a detachable wrench of special construction, (shown in Fig. 3,) consisting of an operating-handle M', provided with a concave shaft-bearing N and a pawl O,which is adapted to engage on the pins P.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, isl l. In an automatically-contractible reel, the combination of the central shaft, suitably supported at its ends in journal-bearings; a pluralityof radial arms supported from said shaft;

a plurality of paper-supporting bars pivotally supported from one edge, at their respective ends, in an annular series around said central shaft, from said radial arms; a conical drum adjustably supported upon said shaft; means for supporting the free edges of said papersupporting bars from said conical drum; and means for intermittingly moving said conical drum longitudinally on said central shaft, as said reel is revolved.

2. In an automatica]ly-contractible reel, the combination of a central shaft, suitably supported at its ends in journal-bearings; a plurality of radial arms supported from said shaft; a plurality of paper-supporting bars, pivotally supported at their edge from one end of said radial arms; a conical drum having screwthreaded bearings on said central shaft; means for supporting the free edges of said papersupporting bars from said drum; means for arresting the rotary movement of said drum during a partial revolution of said central shaft; and means for automatically releasing the same, whereby said drum is caused to revolve intermittingly, and said shaft is caused to gain a partial revolution on said drum with each revolution of the reel, and said drum iS caused to move laterally upon said shaft, as set forth.

3. In an automatically-contractible reel of the class described, the means herein described for adjustably securing the paper-supporting bars F to the ends of the radial arms D and E, consisting in the combination with the ends of said radial arms and the paper-supporting IIO bars; of thecollar J, trunnion K and lockingdevice herein described for intermittingly checking the revoluble movement of the drum N, consisting in the combination with said drum; of a ratchet-Wheel R, paw] S, pivotally supported at' one end from the standard H; colla-rs U and B', provided with angular bearings V and A; and means for adjusting the relative position of said Collars U and B', so as to increase or diminish the distance between the angular bearings V and A', all substantially I O as and for the purpose specified.

In testimony WhereoiI We aiiix our signatures in the presence of two Witnesses.

. JOHN HOBERG, SR.

FRANK H. HOBERG.-

Witnesses:

HENRY GOETHE, D. KNOWLAN. 

